/* ═══════════════════════════════════════════════════════════
   CLAVIS — ANIMATION SYSTEM
   Premium keyframes & entrance animations
═══════════════════════════════════════════════════════════ */

/* ── KEYFRAMES ──────────────────────────────────────────── */

@keyframes ringPulse {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50%       { opacity: 0.35; transform: scale(1.03); }
}

@keyframes coreBreath {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.08); }
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes ringRotate {
  from { transform: rotateX(75deg) rotate(0deg); }
  to   { transform: rotateX(75deg) rotate(360deg); }
}

@keyframes sphereFloat {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.2); }
}

@keyframes lightPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.8; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(201,168,76,0.2), 0 0 20px rgba(201,168,76,0.1);
  }
  50% {
    box-shadow: 0 0 20px rgba(201,168,76,0.4), 0 0 40px rgba(201,168,76,0.2);
  }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(201,168,76,0.2); }
  50%       { border-color: rgba(201,168,76,0.6); }
}

@keyframes textShimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes particleDrift {
  0%   { transform: translateY(0) translateX(0) rotate(0deg); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-100vh) translateX(30px) rotate(360deg); opacity: 0; }
}

@keyframes networkPulse {
  0%, 100% { r: 6; opacity: 0.8; }
  50%       { r: 9; opacity: 1; }
}

@keyframes lineFlow {
  0%   { stroke-dashoffset: 100; opacity: 0.3; }
  50%  { opacity: 0.8; }
  100% { stroke-dashoffset: 0; opacity: 0.3; }
}

@keyframes portalActivate {
  0%   { box-shadow: 0 0 0 rgba(201,168,76,0); }
  50%  { box-shadow: 0 0 40px rgba(201,168,76,0.3), 0 0 80px rgba(201,168,76,0.1); }
  100% { box-shadow: 0 0 20px rgba(201,168,76,0.2); }
}

@keyframes pageTransitionIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmerSweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes progressFill {
  from { width: 0%; }
  to   { width: var(--progress-target, 60%); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes corridorPan {
  0%   { transform: perspective(800px) translateZ(0); }
  100% { transform: perspective(800px) translateZ(50px); }
}

@keyframes hologramFlicker {
  0%, 95%, 100% { opacity: 1; }
  96%            { opacity: 0.85; }
  97%            { opacity: 1; }
  98%            { opacity: 0.9; }
}

/* ── ENTRANCE ANIMATION CLASSES ─────────────────────────── */

.anim-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.anim-fade-up {
  animation: fadeInUp 0.7s cubic-bezier(0.16,1,0.3,1) forwards;
}

.anim-fade-down {
  animation: fadeInDown 0.6s ease forwards;
}

.anim-slide-left {
  animation: slideInLeft 0.7s cubic-bezier(0.16,1,0.3,1) forwards;
}

.anim-slide-right {
  animation: slideInRight 0.7s cubic-bezier(0.16,1,0.3,1) forwards;
}

.anim-scale-in {
  animation: scaleIn 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
}

.anim-page-in {
  animation: pageTransitionIn 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
}

/* Stagger delays */
.anim-delay-1 { animation-delay: 0.1s; }
.anim-delay-2 { animation-delay: 0.2s; }
.anim-delay-3 { animation-delay: 0.3s; }
.anim-delay-4 { animation-delay: 0.4s; }
.anim-delay-5 { animation-delay: 0.5s; }
.anim-delay-6 { animation-delay: 0.6s; }
.anim-delay-7 { animation-delay: 0.7s; }
.anim-delay-8 { animation-delay: 0.8s; }

/* Initially hidden for scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1),
              transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1),
              transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1),
              transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ── HERO ENTRANCE SEQUENCE ─────────────────────────────── */
.hero-emblem {
  opacity: 0;
  animation: scaleIn 0.8s cubic-bezier(0.16,1,0.3,1) 0.2s forwards;
}
.hero-brand {
  opacity: 0;
  animation: fadeInUp 0.9s cubic-bezier(0.16,1,0.3,1) 0.5s forwards;
}
.hero-tagline {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 0.8s forwards;
}
.hero-sub {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 1.0s forwards;
}
.hero-actions {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 1.2s forwards;
}
.hero-stats {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.16,1,0.3,1) 1.4s forwards;
}
.hero-scroll-hint {
  opacity: 0;
  animation: fadeIn 1s ease 2s forwards;
}

/* ── GOLD SHIMMER TEXT ──────────────────────────────────── */
.gold-shimmer {
  background: linear-gradient(
    90deg,
    var(--gold-dim) 0%,
    var(--gold-bright) 30%,
    var(--gold-primary) 50%,
    var(--gold-bright) 70%,
    var(--gold-dim) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: textShimmer 4s linear infinite;
}

/* ── CARD SHIMMER LOADING ───────────────────────────────── */
.card-shimmer {
  position: relative;
  overflow: hidden;
}
.card-shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(201,168,76,0.04) 50%,
    transparent 100%
  );
  animation: shimmerSweep 2.5s ease-in-out infinite;
  pointer-events: none;
}

/* ── GLOW PULSE UTILITY ─────────────────────────────────── */
.glow-pulse {
  animation: glowPulse 3s ease-in-out infinite;
}

/* ── HOLOGRAM FLICKER ───────────────────────────────────── */
.hologram {
  animation: hologramFlicker 8s ease-in-out infinite;
}

/* ── PAGE TRANSITION OVERLAY ────────────────────────────── */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  background: var(--black-deep);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.page-transition-overlay.active {
  opacity: 1;
}

/* ── PROGRESS BAR ANIMATION ─────────────────────────────── */
.course-progress-fill,
.cd-progress-fill {
  animation: progressFill 1.2s cubic-bezier(0.16,1,0.3,1) 0.3s both;
}

/* ── NETWORK NODE PULSE ─────────────────────────────────── */
.network-node-pulse {
  animation: networkPulse 2s ease-in-out infinite;
}

/* ── PORTAL HOVER ACTIVATION ────────────────────────────── */
.portal-card:hover {
  animation: portalActivate 0.4s ease forwards;
}

/* ── VAULT CORE GLOW ANIMATION ──────────────────────────── */
.vc-sphere {
  animation: sphereFloat 4s ease-in-out infinite, glowPulse 3s ease-in-out infinite;
}

/* ── BORDER GLOW ANIMATION ──────────────────────────────── */
.border-glow-anim {
  animation: borderGlow 3s ease-in-out infinite;
}

/* ── REDUCED MOTION ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal,
  .reveal-left,
  .reveal-right {
    opacity: 1;
    transform: none;
  }
}